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JP2012188812A Hydraulic pressure penetration type drilling device and drilling method using the same 有权
标题翻译：液压式渗透式钻孔装置及其钻孔方法
公开(公告)号：JP2012188812A
公开(公告)日：2012-10-04
申请号：JP2011050860
申请日：2011-03-08
申请人： Sanshin Corp , Hara Kogyo Kk , 三信建設工業株式会社 , 原工業株式会社
发明人： NIIZAKA TAKASHI , WATANABE MASAMI , KOBAYASHI KENJI , OGURI MASAAKI , KOIZUMI RYONOSUKE , HARADA YOSHINOBU , YOSHIMI TSUTOMU , YAMAGUCHI FUMIO
IPC分类号： E21B7/18
摘要： PROBLEM TO BE SOLVED: To provide a drilling device capable of surely preventing detachment of an inner piece when the inner piece is needed, and easily and surely removing the inner piece when a required amount of drilling is completed and the inner piece becomes unnecessary.SOLUTION: A hydraulic pressure penetration type drilling device includes an outer piece 4 connected to a distal end of a rod 3, an inner piece 6 housed in the outer piece so as to be extruded, and a member 8 for temporarily fixing the inner piece to the outer piece. Since a load in a counter-excavation direction acting on the inner piece is received by a step part 47 and a load in a turning direction is received by a key 63, the temporary fixing member 8 is not broken by the loads during drilling. When the required amount of drilling is ended, a hydraulic pressure inside the rod is elevated in order to extrude the inner piece. When the extrusion force of the inner piece increases accompanying the elevation of the hydraulic pressure and the extrusion force exceeds a breaking limit of the temporary fixing member, the temporary fixing member is broken and the inner piece is extruded to the front simultaneously.
摘要翻译：要解决的问题：提供一种能够确保在需要内部件时防止内部件脱离的钻孔装置，并且当所需的钻削量完成并且内部件成为容易且可靠地移除内部件时不必要。解决方案：液压穿透型钻井装置包括连接到杆3的远端的外部件4，容纳在外部件中以被挤压的内部件6和用于临时固定的件8 内部件到外部件。由于作用在内部件的反向挖掘方向上的负载被阶梯部47接收，并且通过键63接收转向方向的负载，因此临时固定构件8在钻孔期间不被负载破坏。当所需的钻孔量结束时，杆内的液压升高以挤压内件。当内件的挤压力随着液压升高而增加，并且挤压力超过临时固定构件的断裂极限时，临时固定构件断裂，并且内件同时挤压到前部。版权所有（C）2013，JPO＆INPIT

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